68493805386 has 16 divisors (see below), whose sum is σ = 136992828000. Its totient is φ = 22830398928.

The previous prime is 68493805343. The next prime is 68493805421. The reversal of 68493805386 is 68350839486.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34936 + ... + 371763.

It is an arithmetic number, because the mean of its divisors is an integer number (8562051750).

Almost surely, 2^68493805386 is an apocalyptic number.

68493805386 is an abundant number, since it is smaller than the sum of its proper divisors (68499022614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68493805386 is a wasteful number, since it uses less digits than its factorization.

68493805386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434773.

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 68493805386 in words is "sixty-eight billion, four hundred ninety-three million, eight hundred five thousand, three hundred eighty-six".